Tubik Studio is a comprehensive team of designers specializing in mobile/web interfaces, UI/UX, icons, logos and branding. http://tubikstudio.com/

Calendar App by Ludmila Shevchenko and Kirill via Dribbble

Here is the UI for the Calendar App concept by Ludmila Shevchenko who is always keen to experiment on color schemes creating user interfaces. You can check it full size with all the attachments on Dribbble.